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Application filed by 주식회사 금성사filedCritical주식회사 금성사
Priority to KR2019880018049UpriorityCriticalpatent/KR930002237Y1/en
Publication of KR900008969UpublicationCriticalpatent/KR900008969U/en
Application grantedgrantedCritical
Publication of KR930002237Y1publicationCriticalpatent/KR930002237Y1/en